MeTool is a professional free online tools platform offering 80+ practical utilities covering image processing, video editing, document conversion, online games, 3D preview and developer tools. All tools require no download or installation — use them directly in your browser.

Are MeTool's tools free?

Yes, all tools on MeTool are completely free. No account registration needed, no paid subscription required — just open your browser and start using all features immediately.

How does MeTool protect user privacy?

MeTool uses browser-based local processing technology. All file processing (images, videos, documents) happens on the user's own device. No data is uploaded to servers, fundamentally ensuring user privacy and achieving zero privacy risk.

What types of tools does MeTool offer?

MeTool offers 6 categories of tools: (1) Image tools: compress, convert, remove background, generate QR codes, etc. (2) Video tools: compress, convert, export to GIF, etc. (3) Document tools: Word to PDF, Markdown conversion, WeChat article formatting, etc. (4) Dev tools: JSON formatter, URL encoder/decoder, LAN transfer, etc. (5) Online games: Snake, Gomoku, Go, etc. (6) 3D tools: GLB/GLTF model preview.

Does MeTool require download or installation?

No. MeTool is a pure web application — just open your browser and visit metool.online to use all tools. Works on both desktop and mobile browsers for seamless cross-platform use.

✨ Professional Online Tools

Get Work Done in Your BrowserNo Install, No Wait

One free platform, completely local processing, protecting your privacy. No login needed, no files uploaded to servers.

Markdown Tools View all

Live-preview editor, HTML → Markdown converter, one-click export to WeChat / PDF / Word

Markdown Editor

Don't know how to open a .md file? Drop it in your browser to view and edit instantly. Online Markdown editor with live side-by-side preview, code highlighting, image upload, and dark mode. Drafts auto-save locally — 100% private.

Markdown Share

Paste your Markdown document and generate a shareable preview link. Recipients see the full rendered layout without installing anything. Links expire automatically after 7 days. Data stays in your browser.

Mermaid Diagram

Online Mermaid diagram editor with real-time preview. Type Mermaid syntax and instantly render flowcharts, sequence diagrams, class diagrams, ER diagrams, Gantt charts, and pie charts. Export as SVG or PNG. Runs entirely in your browser — code never leaves your device.

MD Export

Free online converter: turn Markdown / .md files into PDF, Word (.docx), or images (PNG/JPG). Chinese fonts, syntax highlighting, tables and task lists preserved. Smart PDF pagination never clips content. No Pandoc, no install — 100% browser-based, files never uploaded.

LaTeX Formula

Online LaTeX formula editor with real-time preview. Insert Greek letters, integrals, matrices with one click. Export to SVG/PNG. Runs entirely in browser — no data upload.

MD to WeChat

For Markdown writers who already draft in Obsidian, VSCode, or Typora: paste your .md, see a true WeChat-style live preview, copy and paste into the WeChat editor with all formatting preserved. Supports local image uploads: images referenced in your Markdown are detected automatically, uploaded and stored in browser IndexedDB (persists across page reloads), or import a ZIP / folder to batch-import images. Code highlighting, blockquotes, tables — all rendered the way WeChat displays them.

HTML to MD

Paste any HTML — copied from a webpage, WeChat article, blog post or rich-text editor — and convert it to clean, GFM-flavored Markdown. Smart cleanup of inline styles, tables, code blocks, blockquotes and images. Runs 100% in your browser; nothing is uploaded.

MD to RedNote

Turn a Markdown note (tech blog, study notes, knowledge digest) into a multi-card Xiaohongshu carousel. Auto-splits by H2 headings or `---` dividers, renders as 3:4 / 4:5 image cards with multiple themes designed for the Markdown-writer audience.

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HTML Tools View all

Visually edit, preview and share AI-generated HTML — no code, nothing uploaded

HTML Drag Edit

Upload any HTML and edit it visually: click elements to rewrite text, change fonts and colors, swap images (embedded as base64), drag to reorder, undo/redo, find & replace — no code. Built for non-coders polishing AI-generated HTML. 100% browser-local, nothing uploaded.

HTML Share

Upload HTML and generate a shareable link recipients open in any browser — no install. Small files compress into the link; larger files use a third-party temporary store with your consent. Links valid for days. Great for sharing AI-generated pages, reports and prototypes.

HTML Preview

Paste or upload HTML and see it rendered live, with mobile / tablet / desktop viewports and screenshot export (PNG / JPG / PDF). Perfect for previewing AI-generated HTML. Runs entirely in your browser; nothing uploaded.

Video Tools View all

Convert, edit, compress, and merge videos — MP4, AVI, MOV supported, browser-based

Video Compress

Compress MP4, MOV, M4V videos online — up to 80% smaller, visually lossless. Browser-native WebCodecs hardware acceleration. Files never leave your device. No software install, no account. Perfect for email, messaging, social media.

Audio Editor

Edit audio in the browser: waveform trimming, optional auto trim silence / trim ends / peak normalize after upload, fade handles, silence detection, MP3 or WAV export. Files stay on your device.

Subtitle Convert

Free online subtitle converter: turn SRT into VTT for HTML5 video, convert ASS subtitles to SRT for any player, batch convert dozens of files at once. Runs entirely in your browser — files never leave your device.

Video Convert

Convert between MP4, MOV, and M4V formats — browser-native WebCodecs hardware acceleration, no software needed, instant local conversion. iPhone MOV to MP4, MP4 to MOV, M4V to MP4, and more.

Subtitle Sync

Fix out-of-sync subtitles in seconds: shift the whole file by ±N ms, anchor the first and last cue to known timestamps for linear stretch, or rescale 23.976/24/25/29.97/30/60 fps. SRT, VTT, ASS, SBV, LRC supported.

Screen Recording Editor

Free screen recording editor with zoom effects for product demos. Trim, speed ramp, silence removal, macOS wallpaper backgrounds. Screen Studio / Cap / Cursorful alternative — browser-based, no install, 100% private.

Subtitle Editor

Edit SRT, VTT, ASS, SBV, LRC subtitles with a visual timeline and live video preview. Drag cues to retime, edit text inline, split or merge lines, then export back to any format. Pure browser, no upload.

Video Editor

Free browser-based video editor: CapCut-style timeline cutting, crop to any aspect ratio (9:16, 16:9, 4:3, 1:1), 0.25x–10x speed ramp, one-click silence removal, volume control. GPU-accelerated WebCodecs export. No install, 100% private.

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Document Tools View all

Word to PDF, Markdown to WeChat articles, PDF merge & split — all processed locally in your browser

MD to WeChat

Free online Markdown to WeChat Official Account article converter. One-click conversion to WeChat-compatible rich text with syntax highlighting, table styling, and multiple themes. Supports local image upload: local image paths in Markdown are auto-detected, uploaded and stored in browser IndexedDB; also supports ZIP / folder batch import. 100% browser-local processing — your content never leaves your device.

PDF to Images

Free online PDF to image converter. Export every PDF page as a high-quality JPG or PNG. 1×/2×/3× render resolution, batch export as ZIP. All processed locally in your browser — no uploads, fully private.

Word to PDF

Convert Word to PDF instantly, preserving layouts, fonts, and images perfectly. No software needed, convert directly in your browser. Secure and reliable - your documents never touch our servers.

PPT to Images

Free online PowerPoint to image converter. Export every slide as a high-quality JPG or PNG. 1×/2×/3× render resolution, batch export as ZIP. All processed locally in your browser — no uploads, fully private.

MD to Xiaohongshu

Free online Markdown to Xiaohongshu (Little Red Book) knowledge card generator. Auto-pagination, multiple beautiful themes, 3:5 and 1:1 ratios, HD PNG export. Turn tech articles, book notes, and study summaries into viral Xiaohongshu visual posts. 100% browser-local, no upload needed.

PDF Compress

Free online PDF compressor — exceptionally effective for image-heavy and scanned PDFs, often shrinking multi-MB scans to 10%-30% of original size. Two-stage smart compression, 100% browser-local, no uploads.

Word to Image

Free online Word to long-image converter. Batch-upload .docx files and export each as a high-quality JPG or PNG long image, with ZIP download. 1×/2×/3× render scales. 100% browser-local — no uploads, full privacy.

Markdown Convert

Free online Markdown converter: export .md files to PDF, PNG, JPG, WebP, HTML, and Word (DOCX) in seconds. Syntax highlighting, tables, task lists, light/dark themes, smart PDF pagination. 100% browser-local — your files never leave your device.

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3D Tools View all

Preview, convert, and create 3D content in your browser — GLB, GLTF, STL, OBJ supported

GLB Preview

Free online 3D model viewer supporting GLB and GLTF formats. Upload and preview instantly with 360° rotation, zoom, and animation controls. No Blender, Maya, or any software needed. Built for designers, game developers, and 3D printing enthusiasts.

STL Viewer

Free online STL file viewer for 3D printing. Upload and preview STL models with rotation, zoom, and model statistics. Check your 3D print files before slicing — no software needed.

FBX Viewer

Free online FBX viewer. Upload or load from URL to preview Autodesk FBX models with skeletal and camera animation playback, multiple animation clips, six standard views, and model stats export. Rendered locally in your browser.

USDZ Viewer

Free online viewer for USDZ, USDA, USDC, and USD. Upload or load from URL, with orthographic-style view presets and model stats export. 100% local processing — ideal for AR pipelines and quick USD asset checks.

OBJ Viewer

Free online OBJ file viewer for Wavefront 3D models. Upload and preview OBJ models with 360° rotation, zoom, and model statistics. No software needed — works directly in your browser.

3D Converter

Free online 3D model format converter supporting STL, OBJ, GLB, GLTF, PLY, FBX, DAE input. Export to GLB, USDZ, STL, OBJ, PLY instantly in your browser. No upload to servers, 100% privacy protected.

3D Optimizer

Optimize GLB, GLTF, STL, OBJ, FBX in the browser: merge vertices, ratio-based triangle reduction, max texture size, preview, and download GLB. 100% local processing.

Text to 3D

Free online 3D text generator. Type text and instantly create 3D typography with customizable fonts, depth, bevel, materials, and colors. Export as GLB, STL, OBJ for 3D printing, web, and game development.

Dev Tools View all

URL encode/decode, JSON formatter, Base64, regex tester, hash generator and more dev utilities

JSON Formatter

Free online JSON formatter and beautifier tool. One-click format messy JSON data with syntax highlighting, auto-indent, error detection, expand/collapse, copy to clipboard. Essential developer tool for API debugging and config file viewing.

IP Lookup

Free online IP lookup tool. See your public IP or query any IP for its location, ISP/ASN, IP type (Residential, Datacenter, VPN, Tor), timezone and coordinates — pinpointed on an interactive map. Four-tier API fallback for reliable results.

JWT Decoder

Free online JWT decoder. Parses Header and Payload entirely in your browser — converts iat/exp/nbf timestamps to human-readable time, flags expired tokens, and shows nested JSON claims. Your token never leaves your device.

JSON Validator

Professional JSON validation tool that pinpoints syntax errors by line and column number with intelligent fix suggestions. Supports auto-fix for common errors (trailing commas, single quotes, comments). Essential for debugging API responses and config files.

LAN Transfer

Need to send files between Android and iPhone, or Windows and Mac? Open this page on both devices on the same WiFi — no app install, no account needed. P2P encrypted transfer, files never touch a server. Works across Android, iOS, Windows, and macOS.

Password Generator

Free online password generator using cryptographically secure random numbers. Customize length, character sets, with strength indicator.

JSON YAML XML CSV TOML Converter

Free online data format converter supporting bidirectional conversion between JSON, YAML, XML, CSV, and TOML in any combination. Smart format detection, one-click conversion for API development, config migration, and data import/export.

HTTP Request Tester

Need to test an API without installing Postman? Build GET/POST requests in your browser, generate live cURL / Python / Go snippets, and send directly to CORS-enabled endpoints. Requests go from your device — never through MeTool's servers.

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Image Tools View all

Compress, convert formats, remove backgrounds, generate QR codes — all processed locally in your browser

Image Compress

50MB image to 5MB in one click, quality unchanged. JPG, PNG, WebP - all formats supported. Batch processing, local compression, zero privacy concerns.

Sketch Board

Free online whiteboard — no install, no sign-up. Draw with pen, shapes (rect, circle, triangle, arrow), and multi-line text with adjustable font and size. Infinite canvas with pan & zoom. 4 background styles, undo/redo, export PNG or copy to clipboard. Perfect for flowcharts, sketches, annotations and quick idea sharing on desktop or mobile.

Image Split

Long image splitter with fixed-height and custom split line modes. Click to add lines, drag to adjust — precisely separate QR codes and button areas. Perfect for WeChat article images, comic pagination, long screenshot segmentation.

Image Convert

Support JPG, PNG, WebP, AVIF and other mainstream image format conversion. Batch processing, high quality output, completely free. Privacy protection with local processing without server upload.

Remove Background

AI one-click background removal with 12-country ID photo presets: US passport/visa 2×2in, UK/EU/Schengen 35×45mm, Japan resume & driver's license, Korea ARC, Canada passport 50×70mm, India Aadhaar, China 1-inch/2-inch/ID card, and more. Swap blue/red/white backgrounds, drag to position, export print-ready photos. 100% local AI processing.

iPhone Long Image

Professional iPhone long image stitching tool that auto-detects overlapping regions and intelligently removes duplicates, combining multiple screenshots into one seamless long image. Uses first image width as baseline, perfectly solving iPhone's inability to scroll screenshot.

Image Resize

Professional image resizing tool supporting smart scaling, cropping, stretching and other modes. Lock aspect ratio, maintain image quality, suitable for avatar creation, website optimization and other scenarios.

Invisible Watermark

Add invisible watermarks to images that the eye can't see — protect against theft and trace unauthorized sharing. Two modes: hide custom text, or add a rotation/scaling-proof password fingerprint. Batch processing, password protection, one-click verification. Images never leave your browser.

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LaTeX Tools View all

Live .tex editor, one-click PDF/HTML/PNG export — no TeX installation needed

LaTeX Editor

No TeX installation? Drag your .tex file into the browser and see it rendered instantly. Side-by-side live preview supports formulas, tables, and sections. Drafts auto-save locally; export to PDF, HTML, or PNG in one click. Free and private — nothing uploaded.

LaTeX Convert

Upload or paste .tex source and convert to PDF (auto-paginated), self-contained HTML, PNG image, or download the .tex source — in one click. No TeX installation needed. Supports formulas, tables, and sections. 100% browser-local, nothing uploaded.

LaTeX Formula

Type LaTeX math formulas with instant preview. Built-in symbol panel for Greek letters, integrals, and matrices — click to insert, no memorization needed. Export to high-res PNG or scalable SVG for PowerPoint, Word, and websites. Free, browser-only.

LaTeX Preview Share

Paste or upload .tex source and generate a shareable rendered-preview link. Recipients open it in any browser with no LaTeX installation required. Links valid for 7 days. Perfect for sharing thesis drafts, formula notes, and TeX documents.

Puzzle Games View all

Go, Gomoku, Snake, Maze and more puzzle games — no download, play instantly in your browser

Xiangqi

Sudoku

Match-3

Pool

Solar System

Chess

Sliding Puzzle

2048

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Magic Tools View all

Lucky draw, romantic confession effects, memorial pages and other creative tools

Lottery

Company party, event, classroom - launch lottery instantly. Batch import names, repeat drawing, save results. Completely fair, impossible to cheat. Everyone trusts the outcome.

Heart Beat

Add warmth to special moments. Valentine's Day, birthday, anniversary - beating hearts, colorful fireworks, warm words. Confess, celebrate, thank, wish - all on one page.

Memorial Page

Solemn memorial space recording thoughts of the departed. Simple, respectful design, warm words, eternal remembrance for family and friends.

AI Skills View all

Install new capabilities into AI coding assistants with a single command — plug and play

Whoami

Cross-AI user identity profile sync service. Create one profile and every AI agent — Cursor, Claude, Codex, Windsurf — instantly knows your name, skills, preferences, and work style.

Idea → MVP

A complete product development skill that guides you from inspiration discovery to idea validation and MVP implementation. Search trending products, validate feasibility, and build with your preferred tech stack.

Home Advisor

Turn your AI assistant into an experienced house-buying advisor. Understand your needs through natural conversation, research properties from multiple sources, and display recommendations on an interactive browser dashboard.

GA Improve

Analyze website data via Google Search Console and Google Analytics 4 APIs, automate site audits, and generate data-driven improvement reports with prioritized action items.

Local Processing

Your data stays on your device

Lightning Fast

No waiting, no uploads

Completely Free

No login, no limits